Below is the unofficial checklist for Series 12. The ones in bold are the ones I have.

Bishop (with Apocalypse's lower torso and Bishop #2)

Bishop (alternate bald head, Chase)

Iron Fist (original green costume) (with Apocalypse's right leg and Iron Fist #8)

Iron Fist (red costume, Chase)

Hulk ("Maestro") (with Apocalypse's left arm and Captain Marvel vol. 3 #30)

X-23 (black costume, calm head) (with Apocalypse's head/upper torso and Uncanny X-Men #451)

X-23 (purple costume, angry head)

Sasquatch (with Apocalypse's right arm and Alpha Flight vol. 1 #10)

Sasquatch (all-white version)

Wolverine (Astonishing X-men) (with Apocalypse's left leg and Astonishing X-Men vol. 3 #6 comic)

Wolverine (Astonishing X-men, Unmasked, Chase)

Apocalypse (the Build-a-Figure)

Apocalypse (the Build-a-Figure) (Black Costume)